[Substance] Memory leak in RootPaneDefaultButtonTracker about radiance HOT 7 CLOSED

I'll need to see a small standalone test app that shows this memory leak after a JOptionPane has been dismissed.

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Sure.

Same result in VisualVM as before (JButtons "Yes", "No", "Cancel" retained after GC).

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Emphasis on standalone. I can't do anything with that sample.

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The gist of it is very clear though, isn't it? It loads Substance and calls that one line, then sleeps.

You can run it using tinybrain.de/x30.jar and "java -jar x30.jar 1016301".

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I can only look at pure Swing samples. Otherwise it's not clear if JOptionPane is being considered a valid strong reference.

Without a standalone pure Swing sample there's going to be no traction on this report.

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Looking at the historical snapshot of the pre-hiatus Substance, the pulsating of the default button has been effectively a visual no-op, as the value of cyclePos in line 126 is ignored afterwards. This is the same in the latest iteration of that class in line 107.

So given that this has been not doing anything in at least 8 years (java.net history is gone), I'm just going to remove the whole tracking of default buttons.

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Note that ComponentState still has states for default and disabled default buttons, and skins can use those to provide distinctive visuals to such buttons.

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